http://www.redwolfairsoft.com/redwolf/airsoft/AEG_AEP_Tokyo_Marui_AEP_Tokyo_Marui_Model_18C_Sliver_Slide_AEP_Fixed_Slide.htm
http://www.redwolfairsoft.com/redwolf/airsoft/AEG_AEP_Tokyo_Marui_Boys_Series_EBB_Tokyo_Marui_EBBi_P99_DAO.htm
http://cop9gun.com/prshop/en/gas-powered-pistol/934-bell-glock-17-gbb-pistol-built-in-2-stage-recoil-spring.html
http://www.evike.com/products/62981/
Super cheap
http://www.redwolfairsoft.com/redwolf/airsoft/AEG_AEP_Tokyo_Marui_Boys_Series_EBB_Tokyo_Marui_EBB_Desert_Eagle_Black.htm